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該程序用的是匯編語(yǔ)音，由于知識(shí)有限實(shí)在看不懂，幫忙看一看這個(gè)基于52單片機(jī)的源代碼怎么改成基于51單片機(jī)的啊。這個(gè)代碼是用于汽車(chē)轉(zhuǎn)向燈的一個(gè)控制系統(tǒng)的。
單片機(jī)匯編源碼:
- ORG 0000H
- AJMP START1
- ORG 0030H
- SAME EQU 4EH
- START1:MOV P1,#00H ;無(wú)輸入時(shí)輸出
- START: MOV A,P2 ;讀P2口數(shù)據(jù)
- ANL A,#1FH ;取用P2口的低5位數(shù)據(jù)
- CJNE A,#1FH,SHIY ;對(duì)P2口低5位數(shù)據(jù)進(jìn)行判斷
- AJMP START1
- SHIY: MOV SAME,A
- LCALL YS ;延時(shí)
- MOV A,P2 ;讀P2口的數(shù)據(jù)
- ANL A,#1FH ;取用P2口的低5位數(shù)據(jù)
- CJNE A,#1FH,SHIY1 ;對(duì)P2口低5位數(shù)據(jù)進(jìn)行判斷
- AJMP START1 ;開(kāi)關(guān)沒(méi)有動(dòng)作時(shí)無(wú)輸出
- SHIY1: CJNE A,SAME,START1
- CJNE A,#17H,NEXT1 ;P2.3=0時(shí)進(jìn)入左轉(zhuǎn)彎分支
- AJMP LEFT
- NEXT1: CJNE A,#0FH,NEXT2 ;P2.4=0時(shí)進(jìn)入右轉(zhuǎn)彎分支
- AJMP RIGHT
- NEXT2: CJNE A,#1DH,NEXT3 ; P2.1=0時(shí)進(jìn)入緊急分支
- AJMP EARGE
- NEXT3: CJNE A,#1EH,NEXT4 ;P2.0=0時(shí)進(jìn)入剎車(chē)分支
- AJMP BRAKE
- NEXT4: CJNE A,#16H,NEXT5 ;P2.0=P2.3=0時(shí)進(jìn)入左轉(zhuǎn)彎剎車(chē)分支
- AJMP LEBR
- NEXT5: CJNE A,#0EH,NEXT6 ;p2.0=P2.4=0時(shí)進(jìn)入右轉(zhuǎn)彎剎車(chē)分支
- AJMP RIBR
- NEXT6: CJNE A,#1CH,NEXT7 ;P2.0=P2.1=0時(shí)進(jìn)入緊急剎車(chē)分支
- AJMP BRER
- NEXT7: CJNE A,#14H,NEXT8 ;P2.0=P2.1=P2.3=0時(shí)進(jìn)入左轉(zhuǎn)彎緊急剎車(chē)分支
- AJMP LBE
- NEXT8: CJNE A,#0CH,NEXT9 ; P2.0=P2.1=P2.4=0時(shí)進(jìn)入右轉(zhuǎn)彎緊急剎車(chē)分支
- AJMP RBE
- NEXT9: CJNE A,#1BH,NEXT10 ;P2.2=0時(shí)進(jìn)入�？糠种�
- AJMP STOP
- NEXT10: AJMP ERROR
- LEFT: MOV P1,#2AH ;左轉(zhuǎn)彎分支
- LCALL Y1s
- MOV P1,#00H
- LCALL Y1s
- AJMP START
- RIGHT:MOV P1,#54H ;右轉(zhuǎn)彎分支
- LCALL Y1s
- MOV P1,#00H
- LCALL Y1s
- AJMP START
- EARGE: MOV P1,#7EH ;緊急分支
- LCALL Y1s
- MOV P1,#00H
- LCALL Y1s
- AJMP START
- BRAKE: MOV P1,#60H ;剎車(chē)分支
- AJMP START
- AJMP LEBR
- LEBR: MOV P1,#6AH ;左轉(zhuǎn)彎剎車(chē)分支
- LCALL Y1s
- MOV P1,#20H
- LCALL Y1s
- AJMP START
- RIBR: MOV P1,#74H ;右轉(zhuǎn)彎剎車(chē)分支
- LCALL Y1s
- MOV P1,#40H
- LCALL Y1s
- AJMP START
- BRER: MOV P1,#7EH ;緊急剎車(chē)分支
- LCALL Y1s
- MOV P1,#60H
- LCALL Y1s
- AJMP START
- LBE: MOV P1,#7EH ;左轉(zhuǎn)彎緊急剎車(chē)分支
- LCALL Y1s
- MOV P1,#20H
- LCALL Y1s
- AJMP START
- RBE: MOV P1,#76H ;右轉(zhuǎn)彎緊急剎車(chē)分支
- LCALL Y1s
- MOV P1,#40H
- LCALL Y1s
- AJMP START
- STOP: MOV P1,#66H ;�？糠种�
- LCALL Y100ms
- MOV P1,#00H
- LCALL Y100ms
- AJMP START
- ERROR: MOV P1,#01H
- AJMP START
- YS: MOV R7,#20H ;延時(shí)
- YS0: MOV R6,#0FFH
- YS1: DJNZ R6,YS1
- DJNZ R7,YS0
- RET
- Y1s: MOV R7,#04H ;延時(shí)
- Y1s1: MOV R6,#0FFH
- Y1s2: MOV R5,#0FFH
- DJNZ R5,[ DISCUZ_CODE_0 ]nbsp;
- DJNZ R6,Y1s2
- DJNZ R7,Y1s1
- RET
- Y100ms: MOV R7,#66H ;延時(shí)
- Y100ms1:MOV R6,#0FFH
- Y100ms2:DJNZ R6,Y100ms2
- DJNZ R7,Y100ms1
- RET
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